Multiple vulnerabilities in Traefik



Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2023-47633
CVE-2023-47106
CVE-2023-47124
CWE-ID CWE-400
CWE-285
CWE-413
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Traefik
Server applications / Other server solutions

Vendor Containous

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Resource exhaustion

EUVDB-ID: #VU83639

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-47633

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources when processing traffic for Docker containers. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Traefik: 2.0.0 - 2.10.5

CPE2.3 External links

https://github.com/traefik/traefik/security/advisories/GHSA-6fwg-jrfw-ff7p


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Improper Authorization

EUVDB-ID: #VU83638

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-47106

CWE-ID: CWE-285 - Improper Authorization

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authorization.

The vulnerability exists due to the way Traefik handles requests with URL fragments. A remote attacker can use a specially crafted URL to bypass URI-based access control restrictions, when combined with another frontend proxy like Nginx.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Traefik: 2.0.0 - 2.10.5

CPE2.3 External links

https://github.com/traefik/traefik/security/advisories/GHSA-fvhj-4qfh-q2hm


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Improper Resource Locking

EUVDB-ID: #VU83636

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-47124

CWE-ID: CWE-413 - Improper Resource Locking

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to the way the application handles ACME HTTP challenge. If Traefik is configured to use the HTTPChallenge to generate and renew the Let's Encrypt TLS certificates, the delay authorized to solve the challenge of 50 seconds can be exploited by perform a slowloris attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Traefik: 2.0.0 - 2.10.5

CPE2.3 External links

https://github.com/traefik/traefik/security/advisories/GHSA-8g85-whqh-cr2f


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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